Many of the tips involve using software that we have previously mentioned, some of which are free and others are not. The list of tools used include such gems as Xslimmer for removing PowerPC compatibility, Monolingual for stripping out languages that are non-native to you, as well as DiskInventoryX for getting a graphical representation of where all your hard drive space went. The article also discusses improving performance by disabling 3D effects that use up GPU cycles for those users who prefer fast to pretty as well as increasing the amount of RAM installed in your system.
While Snow Leopard may still be some time away the tips provided are a great collection of steps that can be completed to help any Mac squeeze out some better performance and additional hard drive space. If you have any tips that aren't mentioned add them to the comments!
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